@media screen and (max-width: 48rem) {
  body {
    min-width: 18.75rem;
    min-height: 31vh;
  }
  .moNavBtnHide {
    display: none;
  }
  header {
    width: 100%;
    box-sizing: border-box;
  }
  header nav {
    box-sizing: border-box;
    width: 100%;
  }
  header .nav_box {
    width: 100%;
    box-sizing: border-box;
  }
  main {
    width: 100%;
    display: block;
    min-height: 22vh;
    box-sizing: border-box;
  }
  footer {
    width: 100%;
    box-sizing: border-box;
  }
  .bulletin_list {
    width: 90%;
    margin: 0 auto;
    margin-top: 0.625rem;
  }
  .bulletin_list .list_left {
    width: 100%;
    height: auto;
    background-color: #F8F8F8;
    display: flex;
    justify-content: center;
  }
  .bulletin_list .list_left .check span {
    background: #02A0E7;
  }
  .bulletin_list .list_left .check h3 {
    color: #02A0E7;
    text-decoration-line: underline;
  }
  .bulletin_list .list_left div {
    width: 30%;
  }
  .bulletin_list .list_left div h3 {
    text-align: center;
    width: 70%;
    height: 1.875rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 0.875rem;
    line-height: 1.875rem;
  }
  .bulletin_list .list_right {
    width: 100%;
  }
  .bulletin_list .list_right h2 {
    width: 9.375rem;
    height: 0.9375rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 0.875rem;
    color: #333333;
    line-height: 0.9375rem;
    margin-top: 0.4375rem;
    margin-bottom: 0.75rem;
  }
  .bulletin_list .list_right h2 span {
    display: inline-block;
    width: 0.25rem;
    height: 0.25rem;
    border-radius: 50%;
    border: 0.1875rem solid #02A0E7;
  }
  .bulletin_list .list_right .list_right_item {
    width: 100%;
    height: 6.25rem;
    background: #FFFFFF;
    display: flex;
    align-items: center;
  }
  .bulletin_list .list_right .list_right_item .list_times {
    width: 4.125rem;
    height: 4.125rem;
    margin-left: 2.1%;
    background: #FFFFFF;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .bulletin_list .list_right .list_right_item .list_times h4 {
    width: 100%;
    text-align: center;
    height: 1rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 1.3125rem;
    color: #02A0E7;
    line-height: 1rem;
  }
  .bulletin_list .list_right .list_right_item .list_times p {
    width: 100%;
    height: 0.9375rem;
    text-align: center;
    font-family: SourceHanSansCN;
    font-weight: 400;
    font-size: 0.875rem;
    color: #02A0E7;
    line-height: 0.9375rem;
    margin-top: 0.3125rem;
  }
  .bulletin_list .list_right .list_right_item .list_deatils {
    width: 70%;
    margin: 0 auto;
    height: 5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }
  .bulletin_list .list_right .list_right_item .list_deatils h5 {
    display: block;
    width: 100%;
    height: 0.9375rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 0.9375rem;
    color: #02A0E7;
    line-height: 0.9375rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .bulletin_list .list_right .list_right_item .list_deatils p {
    width: 100%;
    font-size: 0.75rem;
    background: #F8F8F8;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    -webkit-line-clamp: 2;
    margin-top: 1.08%;
  }
}
@media screen and (min-width: 48.0625rem) {
  body {
    min-width: 75.0625rem;
  }
  main {
    width: 100%;
    height: 100%;
    min-height: 21vh;
  }
  .bulletin_box {
    width: 100%;
  }
  .bulletin_box .bulletin_list_box {
    width: 62.6%;
    margin: 0 auto;
    padding-bottom: 5rem;
  }
  .bulletin_box .bulletin_list {
    width: 100%;
    margin: 0 auto;
    margin-top: 0.625rem;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .bulletin_box .bulletin_list .list_left {
    width: 16.0625rem;
    height: 50rem;
    background-color: #F8F8F8;
  }
  .bulletin_box .bulletin_list .list_left .check span {
    background: #02A0E7;
  }
  .bulletin_box .bulletin_list .list_left .check h3 {
    color: #02A0E7;
    text-decoration-line: underline;
  }
  .bulletin_box .bulletin_list .list_left div {
    width: 80%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }
  .bulletin_box .bulletin_list .list_left div span {
    width: 0.3125rem;
    height: 3.5625rem;
    background-color: #F8F8F8;
  }
  .bulletin_box .bulletin_list .list_left div h3 {
    display: inline-block;
    width: 70%;
    height: 3.75rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 1.125rem;
    color: #333333;
    line-height: 3.75rem;
    text-decoration-line: none;
  }
  .bulletin_box .bulletin_list .list_left div:hover span {
    background: #02A0E7;
  }
  .bulletin_box .bulletin_list .list_left div:hover h3 {
    color: #02A0E7;
    text-decoration-line: underline;
  }
  .bulletin_box .bulletin_list .list_right {
    width: 80%;
    margin-left: 2rem;
  }
  .bulletin_box .bulletin_list .list_right h2 {
    width: 9.375rem;
    height: 1.8125rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 1.5rem;
    color: #333333;
    line-height: 1.8125rem;
    margin-top: 0.9375rem;
    margin-bottom: 1.5rem;
  }
  .bulletin_box .bulletin_list .list_right h2 span {
    display: inline-block;
    width: 0.9375rem;
    height: 0.9375rem;
    border-radius: 50%;
    border: 0.1875rem solid #02A0E7;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item {
    width: 100%;
    height: 10.25rem;
    background: #FFFFFF;
    display: flex;
    align-items: center;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item .list_times {
    width: 8.25rem;
    height: 8.25rem;
    margin-left: 2.1%;
    background: #FFFFFF;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item .list_times h4 {
    width: 100%;
    text-align: center;
    height: 2.0625rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 2.625rem;
    color: #02A0E7;
    line-height: 1.8125rem;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item .list_times p {
    width: 100%;
    height: 1.8125rem;
    text-align: center;
    font-family: SourceHanSansCN;
    font-weight: 400;
    font-size: 1.25rem;
    color: #02A0E7;
    line-height: 1.8125rem;
    margin-top: 0.625rem;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item .list_deatils {
    width: 70%;
    margin: 0 auto;
    height: 10.25rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item .list_deatils h5 {
    display: block;
    width: 100%;
    height: 1.8125rem;
    font-family: SourceHanSansCN;
    font-weight: bold;
    font-size: 1.5rem;
    color: #02A0E7;
    line-height: 1.8125rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item .list_deatils p {
    width: 100%;
    background: #F8F8F8;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    -webkit-line-clamp: 2;
    margin-top: 1.08%;
  }
  .bulletin_box .bulletin_list .list_right .list_right_item:hover {
    background: #F8F8F8;
  }
}